Report

FZJ-2016-06623

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Experimental investigation of corrosion of IG-110 graphite by steam

Hinssen, H.-K.FZJ* ; Katscher, W.FZJ* ; Loenißen, K.-J.FZJ*

1990
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/12982

Report No.: Juel-Spez-0578

Abstract: In the framework of a cooperation between the Japan Atomic Energy Research Institute (JAERI) and the Research Centre of Julien (KFA) experiments on the corrosion of the Japanese graphite IG-110 by water vapour were carried out. The temperature of the graphite samples and the water vapour partial pressure were kept constant at 1000°C/474 mbar. The total pressure in the test loop using helium as carrier gas was varied between 3 and 55 bar. Burn-off and pressure dependent reaction rates and density profiles in corroded samples were measured. As expected, the burn-off dependence of the reaction rate decreased with increasing pressure, while only a comparably low pressure dependence of the reaction rate was found. The latter indicates that the influence of the Knudsen diffusion is giveneven for the highest pressure. This finding is in fair agreement with the results of density profile measurements carried out at a couple of corroded samples, which also revealed a relatively small pressure dependence of the "penetration depth". Correlations for the caculation of reaction rates and the penetration depth are given.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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Database coverage:

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